An efficient synthesis of hexa-substituted benzenes and the discovery of a novel host conformation for hexakis (β-naphthylthio) benzene
作者:David D MacNicol、Paul R Mallison、Anthony Murphy、Gordon J Sym
DOI:10.1016/s0040-4039(00)88367-7
日期:1982.1
synthesised by reaction of hexachlorobenzene with an excess of the sodium salt of β-mercaptonaphthalene in 1,3-dimethyl-2-imidazolidinone (DMEU) as solvent; other hexakis (arylthio)- benzenes, hexakis(phenoxy) benzene (IV), and hexakis (phenylseleno) benzene (V) were prepared analogously from hexahalobenzenes, HMPA being used as solvent in the last case. An X-ray analysis of the channel-type adduct of (III) with
solutions). The properties originate from a fluorescence-phosphorescence-phosphorescence triple-channel emission effect, which is regulated by S and Se heavy atoms-dependent intersystem crossing upon molecular packing, as well as Se-Se atom interaction-caused energy splittings. Consequently, full-color luminescence, including a typical white-light luminescence with a Commission Internationale de I'Eclairage
PARTICULATE AMINE-FUNCTIONALIZED POLYARYLETHERKETONE POLYMER AND COPOLYMERS THEREOF
申请人:Cytec Industries Inc.
公开号:US20150337082A1
公开(公告)日:2015-11-26
Particles of an amine-functionalised polyaryletherketone polymer or copolymer thereof. The amine-functionalised polyaryletherketone polymer or copolymer thereof is selected from the group consisting of: polyaryletherketone polymer with terminal amine or protected amine functional group(s); polyaryletherketone-imide copoplymer with terminal amine or protected amine functional group(s); and polyaryletherketone-sulphone copolymer with terminal amine or protected amine functional group(s).
Method for making particulate amine-functionalized polyaryletherketone polymers and copolymers thereof
申请人:KETONEX LIMITED
公开号:US10100144B2
公开(公告)日:2018-10-16
The present invention provides a method of preparing an amine-functionalized (e.g. amine-terminated) polyaryletherketone polymer, or imide- or sulphone-copolymer thereof and amine-protected analogs thereof, said method comprising the step of polymerizing a monomer system in a reaction medium comprising a capping agent comprising —NR2, —NRH or a protected amine group.
Method for making polyarylaliphaticetherketone polymers and copolymers thereof
申请人:KETONEX LIMITED
公开号:US10450408B2
公开(公告)日:2019-10-22
A process for producing a polymer includes polymerizing a monomer system containing a compound of formula: Ar—O—Ar—C(═O)—X—C(═O)—Ar—O—Ar in a reaction medium containing a Lewis acid. In the formula, X is an aliphatic moiety, and Ar is an aromatic moiety. The reaction medium further includes a dielectrophile. The dielectrophile is a compound of formula: L-(O═)C—Ar—C(═O)-L, in which L is a leaving group.